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Cheap flights from Seattle to Ireland from €182

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ireland departing on 21/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Icelandair Logo
15:45 - 13:15SEA-DUB
13h 30m1 stop
Icelandair Logo
12:15 - 20:40DUB-SEA
16h 25m1 stop
€340Icelandair
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Sun, 12 Oct - Wed, 22 Oct
Icelandair Logo
19:00 - 11:05SEA-DUB
32h 05m1 stop
Icelandair Logo
12:15 - 17:50DUB-SEA
13h 35m1 stop
€341Icelandair
Find Deal
Wed, 15 Oct - Wed, 22 Oct
Multiple Airlines Logo
06:20 - 09:55SEA-DUB
20h 35m1 stop
Multiple Airlines Logo
09:00 - 22:16DUB-SEA
21h 16m1 stop
€343Multiple Airlines
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Mon, 27 Oct - Wed, 12 Nov
Air Canada Logo
08:10 - 07:10SEA-DUB
15h 00m1 stop
Air Canada Logo
09:00 - 19:16DUB-SEA
18h 16m2 stops
€345Air Canada
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Tue, 18 Nov - Wed, 3 Dec
United Airlines Logo
12:00 - 11:10SEA-DUB
15h 10m1 stop
United Airlines Logo
10:40 - 21:13DUB-SEA
18h 33m2 stops
€349United Airlines
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Mon, 20 Oct - Wed, 5 Nov
United Airlines Logo
23:40 - 07:20SEA-DUB
23h 40m2 stops
United Airlines Logo
10:40 - 23:10DUB-SEA
20h 30m2 stops
€350United Airlines
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Mon, 20 Oct - Wed, 5 Nov
Air Canada Logo
20:00 - 06:10SEA-DUB
27h 10m2 stops
Air Canada Logo
09:00 - 22:16DUB-SEA
21h 16m1 stop
€354Air Canada
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Mon, 27 Oct - Wed, 12 Nov
Multiple Airlines Logo
15:10 - 17:10SEA-DUB
18h 00m1 stop
Multiple Airlines Logo
09:00 - 19:16DUB-SEA
18h 16m2 stops
€359Multiple Airlines
Find Deal
Wed, 12 Nov - Wed, 26 Nov
Delta Logo
06:00 - 08:45SEA-DUB
19h 45m2 stops
Delta Logo
11:30 - 22:08DUB-SEA
17h 38m1 stop
€360Delta
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Mon, 9 Mar - Wed, 25 Mar
Delta Logo
15:46 - 08:45SEA-DUB
32h 59m1 stop
Delta Logo
10:45 - 22:21DUB-SEA
19h 36m1 stop
€361Delta
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Sat, 22 Nov - Thu, 4 Dec

United Airlines flights from Seattle to Ireland

Our best United Airlines deals on Seattle to Ireland flight tickets
United Airlines
20 Oct
SEA12:00Seattle/Tacoma Intl
15h 10m
1 stop
DUB11:10Dublin
5 Nov
DUB10:40Dublin
18h 33m
2 stops
SEA21:13Seattle/Tacoma Intl
€349
Find similar
United Airlines
20 Oct
SEA23:40Seattle/Tacoma Intl
23h 40m
2 stops
DUB07:20Dublin
5 Nov
DUB10:40Dublin
20h 30m
2 stops
SEA23:10Seattle/Tacoma Intl
€350
Find similar
United Airlines
27 Oct
SEA06:20Seattle/Tacoma Intl
18h 10m
1 stop
DUB07:30Dublin
12 Nov
DUB10:40Dublin
18h 33m
2 stops
SEA21:13Seattle/Tacoma Intl
€352
Find similar

Icelandair flights from Seattle to Ireland

Our best Icelandair deals on Seattle to Ireland flight tickets
Icelandair
12 Oct
SEA15:45Seattle/Tacoma Intl
13h 30m
1 stop
DUB13:15Dublin
22 Oct
DUB12:15Dublin
16h 25m
1 stop
SEA20:40Seattle/Tacoma Intl
€340
Find similar
Icelandair
15 Oct
SEA19:00Seattle/Tacoma Intl
32h 05m
1 stop
DUB11:05Dublin
22 Oct
DUB12:15Dublin
13h 35m
1 stop
SEA17:50Seattle/Tacoma Intl
€341
Find similar
Icelandair
4 Oct
SEA15:45Seattle/Tacoma Intl
11h 20m
1 stop
DUB11:05Dublin
15 Oct
DUB12:15Dublin
13h 35m
1 stop
SEA17:50Seattle/Tacoma Intl
€346
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 17 September 2025.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 12/10

15:45-13:15

1 stop13h 30m

Dublin

Wed 22/10

12:15-20:40

1 stop16h 25m

€340

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 15/10

19:00-11:05

1 stop32h 05m

Dublin

Wed 22/10

12:15-17:50

1 stop13h 35m

€341

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 27/10

06:20-09:55

1 stop20h 35m

Dublin

Wed 12/11

09:00-22:16

1 stop21h 16m

€343

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 18/11

08:10-07:10

1 stop15h 00m

Dublin

Wed 3/12

09:00-19:16

2 stops18h 16m

€345

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 20/10

12:00-11:10

1 stop15h 10m

Dublin

Wed 5/11

10:40-21:13

2 stops18h 33m

€349

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 20/10

23:40-07:20

2 stops23h 40m

Dublin

Wed 5/11

10:40-23:10

2 stops20h 30m

€350

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 27/10

20:00-06:10

2 stops27h 10m

Dublin

Wed 12/11

09:00-22:16

1 stop21h 16m

€354

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 12/11

15:10-17:10

1 stop18h 00m

Dublin

Wed 26/11

09:00-19:16

2 stops18h 16m

€359

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 9/3

06:00-08:45

2 stops19h 45m

Dublin

Wed 25/3

11:30-22:08

1 stop17h 38m

€360

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 22/11

15:46-08:45

1 stop32h 59m

Dublin

Thu 4/12

10:45-22:21

1 stop19h 36m

€361

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

How to get the cheapest flight ticket from Seattle to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of November is another great option to travel to Ireland, with average flight prices from Seattle averaging around €429.

What is the cheapest Seattle/Tacoma Intl to Ireland flight route?

Fly from Seattle/Tacoma Intl to Dublin for the best Seattle/Tacoma Intl - Ireland flight prices

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €556 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Seattle for as low as €490 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Ireland flights?

There is only 1 cabin class available to choose from on Seattle/Tacoma Intl to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Seattle to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ireland

Fastest flight time

9h 00m

Direct flights

Every day

Airports in Ireland

1 airport
The fastest flight from Seattle to Ireland takes 9h 00m
Direct flights go from Seattle to Ireland every day.
There is 1 airport near Ireland: Dublin (DUB)
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  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ireland?

    Prices for flights from Seattle/Tacoma Intl Airport to Ireland are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Ireland?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ireland for you.

Can I find flights from Seattle to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Ireland?

momondo helps you find the best flight between Seattle and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Ireland from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Ireland

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Popular flights according to clicks in the last 7 days on momondo
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